US6798483B2ExpiredUtilityA1

Floating electrode switching liquid crystal display

68
Assignee: HANNSTAR DISPLAY CORPPriority: Apr 25, 2002Filed: Apr 25, 2002Granted: Sep 28, 2004
Est. expiryApr 25, 2022(expired)· nominal 20-yr term from priority
G02F 1/134309G02F 1/133707G02F 1/134381
68
PatentIndex Score
12
Cited by
4
References
12
Claims

Abstract

A floating electrode switching liquid crystal display (FES-LCD). A plurality of liquid crystal molecules held between the first substrate and the second substrate, and the liquid crystal molecules are aligned to a first direction. A plurality of transverse-extending gate lines and lengthwise-extending signal lines formed on the first substrate to define a plurality of pixel areas arranging in a matrix form. A plurality of pixel electrodes and floating electrodes formed on the first substrate, the pixel electrodes and the floating electrodes are positioned within the pixel areas, and being arranged to a second direction. A common electrode layer formed on the second substrate. The pixel electrodes and the floating electrodes are separated in the same plane, and the first direction and the second direction are intersected with an angle θ.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
       1. A floating electrode switching liquid crystal display (FES-LCD), comprising: 
       a first substrate and a second substrate;  
       a plurality of liquid crystal molecules held between the first substrate and the second substrate, the liquid crystal molecules are aligned to a first direction;  
       a plurality of transverse-extending gate lines and lengthwise-extending signal lines formed on the first substrate to define a plurality of pixel areas being arranged in a matrix form;  
       a plurality of pixel electrodes and a plurality of floating electrodes formed on the first substrate, the pixel electrodes and the floating electrodes are positioned within the pixel areas, wherein the floating electrodes are positioned within each one of the pixel electrodes, the floating electrodes are strip-shaped, at least two adjacent floating electrodes are not parallel and the floating electrodes are spaced apart and arranged along the first direction, and for each pixel area, one line extends along a direction perpendicular to the first direction across only one floating electrode;  
       a plurality of switching elements formed on the first substrate and within the pixel areas, each pixel area has at least one switching element, and the switching elements are connected to the pixel electrodes; and  
       a common electrode layer formed on the second substrate; wherein:  
       the pixel electrodes and the floating electrodes are separated in the same plane.  
     
     
       2. The floating electrode switching liquid crystal display as claimed in  claim 1 , wherein the first substrate is an TFT substrate. 
     
     
       3. The floating electrode switching liquid crystal display as claimed in  claim 1 , wherein the second substrate is a color filter substrate. 
     
     
       4. The floating electrode switching liquid crystal display as claimed in  claim 1 , wherein the liquid crystal molecule is a negative dielectric anisotropy material. 
     
     
       5. The floating electrode switching liquid crystal display as claimed in  claim 1 , wherein the first direction is rubbing direction. 
     
     
       6. The floating electrode switching liquid crystal display as claimed in  claim 1 , wherein the gate lines are composed of non-transparent conductivity film. 
     
     
       7. The floating electrode switching liquid crystal display as claimed in  claim 1 , wherein the pixel electrodes and the floating electrodes are composed of transparent conductivity film. 
     
     
       8. The floating electrode switching liquid crystal display as claimed in  claim 1 , wherein the switching elements are thin film transistors. 
     
     
       9. The floating electrode switching liquid crystal display as claimed in  claim 1 , wherein the FES-LCD is an active matrix LCD. 
     
     
       10. The floating electrode switching liquid crystal display as claimed in  claim 1 , wherein the floating electrodes are arranged to a second direction and a third direction other than the second direction, and the first direction and the second direction or the third direction are intersected with an angle θ. 
     
     
       11. The floating electrode switching liquid crystal display as claimed in  claim 10 , wherein the angle θ is about 70˜85°. 
     
     
       12. The floating electrode switching liquid crystal display as claimed in  claim 10 , wherein the angle θ is about −70˜−85°.

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